PHP Fatal error: Call to undefined function is_wp_error() in /wp-includes/functions.php on line 1299 w/ patch

[tacker]

Happens if you access a fresh wp installation.

Fix:

wp-includes/functions.php

@@ -1 +1 @@
 <?php
 
 require_once(dirname(__FILE__).'/compat.php');
+require_once(dirname(__FILE__).'/classes.php');
 
 function mysql2date($dateformatstring, $mysqlstring, $translate = true) {
        global $wp_locale;

My first fix breaks other stuff.

This works:

wp-blog-header.php

@@ -5 +5 @@
        if ( strstr( $_SERVER['PHP_SELF'], 'wp-admin') ) $path = '';
        else $path = 'wp-admin/';
 
+  require_once( dirname(__FILE__) . '/wp-includes/classes.php');
   require_once( dirname(__FILE__) . '/wp-includes/functions.php');
   wp_die("There doesn't seem to be a <code>wp-config.php</code> file. I need this before we can get started. Need more help? <a href='http://codex.wordpress.org/Editing_wp-config.php'>We got it</a>. You can <a href='{$path}setup-config.php'>create a <code>wp-config.php</code> file through a web interface</a>, but this doesn't work for all server setups. The safest way is to manually create the file.", "WordPress &rsaquo; Error");
 }

Thanks for the patch!

What version are you running including svn revision? What server environment?

Would you attach patches instead of posting inline (include the project's path structure in your patch)?

Should already be fixed by [4926]

Oops, nevermind. This is a different case.

(In [4973]) Fix wp_die() includes when bailing out in the blog header. Props tacker. fixes #3883